On Sat, May 11, 2013 at 6:24 PM, M.-A. Lemburg <mal@egenix.com> wrote:
On 11.05.2013 19:05, Christian Tismer wrote:
> I think a simple stripping of white-space in
>
>     text = s"""
>       leftmost column
>         two-char indent
>       """
>
> would solve 95 % of common indentation and concatenation cases.
> <snipped>
This is not a good solution for long lines where you don't want to
have embedded line endings. Taken from existing code:

_litmonth = ('(?P<litmonth>'
             'jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec|'
             'mär|mae|mrz|mai|okt|dez|'
             'fev|avr|juin|juil|aou|aoû|déc|'
             'ene|abr|ago|dic|'
             'out'
             ')[a-z,\.;]*')

or
                    raise errors.DataError(
                        'Inconsistent revenue item currency: '
                        'transaction=%r; transaction_position=%r' %
                        (transaction, transaction_position))

Agreed.  I use the implicit concatenation a lot for exception messages like the one above; we also tend to keep line length to 80 characters *and* use nice verbose exception messages.  I could live with adding the extra '+' characters and parentheses, but I think it would be a net loss of readability.

The _litmonth example looks like a candidate for re.VERBOSE and a triple-quoted string, though.

Mark